EP 2365449 A3 20111214 - Embedding a session description message in a real-time control protocol (RTCP) message
Title (en)
Embedding a session description message in a real-time control protocol (RTCP) message
Title (de)
Einbettung einer Sitzungsbeschreibungsnachricht in eine Echtzeit-Steuerungsprotokoll-Nachricht
Title (fr)
Intégration d'un message de description de session dans un message de protocole de contrôle en temps réel (RTCP)
Publication
Application
Priority
- EP 04779232 A 20040728
- US 69343003 A 20031024
- US 83697304 A 20040430
Abstract (en)
[origin: US2005089035A1] Multimedia presentations are multicast using an announcement channel that includes presentation description information along with multiple channels for multiple streams of multimedia data to accommodate clients of different multimedia resources. Clients can use the announcement channel to select channel(s) appropriate for their multimedia resources. The channels are created in a predetermined manner (e.g., preselected logical addresses, preselected ports of an IP address, etc.) so that clients can immediately join a channel without (or concurrently with) joining the announcement channel to reduce startup latency. An acceleration channel may be created that provides blocks of data containing a preselected number of previous units, which may be transmitted at at a bit rate that is "faster than real-time". This feature allows clients with suitable resources to more quickly buffer sufficient data to begin presenting the multimedia data to users.
IPC 8 full level
G06F 17/30 (2006.01); H04L 12/18 (2006.01); H04L 29/06 (2006.01); H04M 3/487 (2006.01); H04M 7/00 (2006.01)
CPC (source: EP US)
H04L 12/1895 (2013.01 - EP US); H04L 65/1101 (2022.05 - US); H04L 65/4015 (2013.01 - EP US); H04L 65/611 (2022.05 - EP US); H04L 65/65 (2022.05 - EP US); H04L 65/70 (2022.05 - EP US); H04M 7/006 (2013.01 - EP US); H04N 21/23439 (2013.01 - EP US); H04N 21/44004 (2013.01 - EP US); H04N 21/6405 (2013.01 - EP US); H04N 21/643 (2013.01 - EP US); H04N 21/6437 (2013.01 - EP US)
Citation (search report)
- [A] EP 1280306 A2 20030129 - PRIMARY NETWORK INC D B A ACME [US]
- [A] FR 2827451 A1 20030117 - FRANCE TELECOM [FR]
- [A] EP 1337061 A1 20030820 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [A] SCHULZRINNE COLUMBIA UNIVERSITY S CASNER PACKET DESIGN R FREDERICK BLUE COAT SYSTEMS INC V JACOBSON PACKET DESIGN H: "RTP: A Transport Protocol for Real-Time Applications; rfc3550.txt", 1 July 2003, IETF STANDARD, INTERNET ENGINEERING TASK FORCE, IETF, CH, ISSN: 0000-0003, XP015009332
- [A] CASNER PACKET DESIGN S: "Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth; rfc3556.txt", IETF STANDARD, INTERNET ENGINEERING TASK FORCE, IETF, CH, 1 July 2003 (2003-07-01), XP015009338, ISSN: 0000-0003
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2005089035 A1 20050428; US 7586938 B2 20090908; CN 100565504 C 20091202; CN 1745382 A 20060308; EP 2365449 A2 20110914; EP 2365449 A3 20111214; EP 2365449 B1 20150225; EP 2365450 A2 20110914; EP 2365450 A3 20111214; EP 2365450 B1 20150408; HK 1092237 A1 20070202; TW 200525968 A 20050801; TW I370655 B 20120811; US 2005091190 A1 20050428; US 2009106443 A1 20090423; US 7492769 B2 20090217; US 8175097 B2 20120508; ZA 200504757 B 20060830
DOCDB simple family (application)
US 69343003 A 20031024; CN 200480003279 A 20040728; EP 11004532 A 20040728; EP 11004533 A 20040728; HK 06112656 A 20061117; TW 93122770 A 20040729; US 34622008 A 20081230; US 83697304 A 20040430; ZA 200504757 A 20050610